Magnet Test For Stainless Steel

There are three.

Magnet test for stainless steel.

Identification tests for stainless steels magnetic spark hardness and acid identification tests of austenitic martensitic and ferritic stainless steels. Don t assume that if it doesn t stick. Other qualitative tests are listed in atlas technote 1. Asme ansi b36 10 19 carbon alloy and stainless steel pipes dimensions pipe sizes inside and outside diameters wall thickness schedules moment of inertia.

Be aware that magnets can stick to some non metal surface such as ferrite ceramics. So out of curiosity i did a kitchen magnet test on my tri ply stainless steel cuisinart multiclad pro cookware. Metals can be classified as ferromagnetic paramagnetic or diamagnetic. Martensitic stainless steel such as grades 410 420 440.

Magnetic particle testing mt also known as magnetic particle inspection mpi is a non destructive test ndt method used to detect surface or subsurface near to surface discontinuities this ndt method can be used on metals which can be easily magnetized ferromagnetic. The magnetic response of a piece of steel is a quick and qualitative test that can be useful for sorting grades of stainless steel. Although it is called stainless a better term for it is highly stain resistant it is a darker metal. The magnet stuck well on my le creuset enameled cast iron cookware but not the mcps.

Nice article to go through. The magnet did not stick. Place the magnet on the sample and tip it upright or try to pull the magnet away from the metal. Ferritic stainless steels such as grades 409 430 and 439.

Which types of stainless steel are magnetic. There are two process methods to make it bright both are surface treatments. Grade sorting by magnetic response. The stainless steel magnet test is a popular and easy way for consumers to supposedly test the grade of stainless steel used in a grill.

If the magnets attaches to the grill then it is not made of high grade stainless steel. The magnet test is not a correct way to verify stainless steel stainless steel is a common name for metal alloys that consist of 10 5 or more chromium cr and more than 50 iron fe. If the sample remains attached or resists being pulled off it s a ferrous metal such as steel iron nickel or cobalt. If the magnet does not attach to the grill it is made of high grade stainless steel.

Magnetic and non magnetic stainless steels can typically be grouped together based on the type of stainless steel. Anon112355 september 20 2010.